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- basic reproductive rate 基本再生数
- Keywords anopheles hurcanus sinensis;malaria;vectorial capacity;basic reproduction rate; 中华按蚊;疟疾;媒介能量;基本繁殖率;
- In this paper, dynamical behavior of a kind of SEIS model with the saturating contact rate is studied.A basic reproductive number which determines the outcome of infectious disease is discovered. 摘要研究了一类具有饱和接触率的SEIS模型的动力学性质，得到了决定疾病绝灭或持续的基本再生数。
- basic reproduction rate 基本繁殖率
- Indications: Supply Calcium, Strength bone and teeth, improving reproductive rate and growth. 功能：高效补钙，促进骨骼和牙齿发育，防止骨质疏松。
- Objective To compare the effects of colony oviposition and single tube oviposition for improving the reproductive rate of Anopheles anthropophagus . 目的比较群体产卵法与单管产卵法对提高嗜人按蚊繁殖率的效果。
- They are preyed upon by a wide variety of other beasts -- including the Gungans -- but their high reproductive rate keeps them surviving. 牠们是其他许多动物的猎物--包括刚耿族人--但是极高的繁殖率使牠们仍能存活下来。
- Indications: Promote the transformation of calcium and phosphorus, prevent osteoporosis, rachitis, abortion, eye disease, etc. Enhance reproductive rate, Improve hair quality. 功能：预防和治疗维生素E缺乏症，促进体内钙磷的转化，防止骨质疏松、佝偻病等，提高繁殖能力，增加毛发色泽。
- We define the basic reproductive number for the models.The basic reproductive number is the average of secondary infections produced by a typical infective during the entire period of infectiousness . 在研究中对这些模型引入了再生数，其意义为一个病人在染病期内平均感染的人数，再生数决定平衡解的稳定性及地方病平衡点的存在性。
- He increased the reproduction rate of rabbits by inducing oestrus. 他使用催情的方法来提高兔子的繁殖率。
- The reproduction rate of the aphid is influenced by nutrition. 蚜虫的繁殖率受到营养的影响。
- With the methods of observing physiological indexes, growth and development, reproductive rate and production targets, 20 Angora goats introduced from Australia into the loess plaleau of north Shaanxi were studied on adaptability. 采用测定生理指标,生长发育、繁殖率和生产指标的方法,对从澳大利亚引进的20只安哥拉山羊进行适应性研究。
- We may track heritable changes across genotypes and morphology (physical form), as well as across life history traits such as virulence, transmissibility, host specificity and reproductive rate. 我们可以在基因型与形态（体型）之间，以及在各个阶段的生命史特徵，像是毒性、传染力、宿主专一性与生殖率等之间，追踪遗传变化；
- It's almost impossible to agree on a unified basic price. 几乎不可能商定一个划一的基本价格。
- Mosquito fish had large habitat niches, rapid growth rate, ovoviviparity, high reproduction rate and large adaptation reproduction conditions. 它们具有广泛的生境适应性、生长迅速、卵胎生、高生殖率、对生殖生态条件无特殊要求等特点。
- Let me enlarge on this basic theme. 让我进一步阐述一下这个基本主题。
- Let's examine into the basic mechanism involved. 让我们把有关的基本结构搞搞清楚。
- Intensifying the problem is the slow reproduction rate of the reptiles. On average, female tuatara mate once every four years, and eggs take between 11 and 16 months to hatch. 更糟的是，这种动物繁殖率很低。平均来说，雌性每4年才交配一次，而卵需要11-16个月时间孵化。
- The family is the basic unit of society. 家庭是社会的基本单位。
